A RELAY SYSTEM, A RELAY APPARATUS AND A RELAY METHOD FOR WIDEBAND WIRELESS ACCESSING

摘要

A relay method and a relay system for wideband wireless access include: firstly a frequency selectivity channel is changed to a flat fading channel using OFDM technology in order to compose a MIMO system with multi-antenna by using all antennae of a group of relay stations; the system structure of the relay station can realize a distributive MIMO codec transmission system of a group of relay stations; the space-time/space-frequency/space-time-frequency/space division multiplex code method can be used, so the advantage of the space division multiplex can be utilized fully; in a multi-antenna transmitting and receiving system between the higher and lower levels of multi-level cooperative relay station group, MIMO transmission with multi-hop relay is implemented.